Hammers boss Sam Allardyce is looking to bolster his attacking options with Andy Carroll possibly ruled out until 2015 and with new signing Enner Valencia struggling for fitness and ruled out of the start of the season.

The Londoners are scouring the world for strikers and confirmed last week that bids were being lined up for up to four players, one of which is for Wickham.

The 21-year-old has just 12 months left on his current deal and has thus far refused to accept a new contract at the Stadium of Light.

Sunderland are still hopeful he will sign an extension following a brilliant run of form at the end of last season – which saw him score five goals in nine games as the club avoided relegation.

The Black Cats kick off their Premier League campaign against West Brom on Saturday, while West Ham host Tottenham.